Research On Network Situation Assessment Method Oriented To Services

With the increasing popularity of computer and the rapid development of networkingtechnology, the network plays a more and more important role in the social, political,economic, military and other fields. Currently, network is developing to more large-scale andhigh distributed. The concept of “Network Services” is abstract, but simply refers to a varietyof computer programs running on the network platform and their main purpose is to completethe user’s specific needs. Network services plays an important role in all sectors of society, sohow to provide flexible, fast and efficient network services and to protect its security,availability, and reliability will be the key point of next generation network research.Network situation assessment method oriented to services can give a result of globalassessment and it is also an important research in the field of network security. At present, anumber of insights and research methods have been proposed by domestic and foreignscholars and research institutions for this problem, and have achieved certain results, but thesemethods still have no unified standard, and have many shortages on the applicability andaccuracy.From the perspective of services, this paper analyses the network parameters that areable to accurately reflect the situation of the current network services and establishes acomprehensive network services situation index system consisted of three aspects: servicerequester, service provider and the network link.; and then, improves the inadequacy of D-Sevidence theory which is one of the traditional data fusion algorithm, so that it can solve thequestion of combination of high conflict data; after that, according to the already establishednetwork services situation index system, an assessment method based on fuzzy mathematicsand D-S evidence theory is proposed, and the applicability and rationality of this method areverified with the simulation results; finally, according to the previous elaboration, this paperdesigns and realizes the network situation assessment system oriented to services, andgenerates a graphic representation of the final assessment results through the collection andcalculation of network information.